How do fishes survive in frozen lakes? - Physics

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Short Note

How do fishes survive in frozen lakes?

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Solution

Fishes survive in pond even when the atmospheric temperature is below 0°C. It is because of anomalous expansion of water. When the temperature falls below 0°C water changes into ice and rises to the top and ice being poor conductor of heat helps to keep water below it at 4°C and fish can live in pond water.

Concept: Anomalous Expansion of Water
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Chapter 6: Heat and Energy - Exercise

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